Put-Call Ratio (Volume) (150-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

GRAIL, Inc. (GRAL) had 150-Day Put-Call Ratio (Volume) of 0.2857 for 2026-09-03.

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Figures for 2026-09-03

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7372
Historical Volatility (Parkinson)	0.6731
Implied Volatility (Calls)	0.8376
Implied Volatility (Puts)	0.8379
Implied Volatility (Mean)	0.8377
Put-Call Implied Volatility Ratio	1.0004
Implied Volatility Skew	0.0068
Option Statistics
Put-Call Ratio (Volume)	0.2857
Put-Call Ratio (Open Interest)	0.4819